WAEC Chemistry 2025 Theory — Question 47

Question 47 of 70 from the West African Examinations Council (WAEC) Chemistry 2025 Theory paper, with the correct answer and a full explanation.

4(d)(ii). Give the reason for each answer stated in 4(d)(i).

Model answer

HCl is used for the fountain experiment because it is highly soluble in water. CH4 is used as a domestic fuel because it has a high calorific value.

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